2Pcs Star Knob M4–M12 Brass Insert Black Plastic Thumb Nut

$12.01 $13.58

Shipping calculated at checkout.

Color

2-Pack Black Plastic Star Knobs with Brass Female Thread Insert

Upgrade your equipment, jigs, fixtures, and DIY projects with these sturdy black plastic cross star knobs. Each knob features a brass female threaded insert for long-lasting thread integrity and smooth, secure hand-tightening. Available in M4, M5, M6, M8, M10, and M12 thread sizes, these thumb nuts are an easy drop-in replacement or addition to machinery, woodworking tools, photography gear, and workshop equipment.

Made in Mainland China.

Key Features

Brass Insert: Durable copper/brass female thread resists wear and cross-threading for reliable grip every time
Black Plastic Body: Lightweight, corrosion-resistant cross/star knob body for comfortable finger-tightening without tools
Wide Size Range: Available in M4, M5, M6, M8, M10, and M12 — fits a broad variety of equipment and fastening applications
Customizable: Suitable for DIY builds, machinery adjustments, fixtures, clamping systems, and more
2-Piece Set: Comes in a convenient pack of 2 for versatile use across multiple attachment points

Specifications

Material	Black Plastic Body with Brass (Copper) Thread Insert
Thread Sizes	M4, M5, M6, M8, M10, M12
Thread Type	Female (Internal Thread)
Quantity	2 Pieces per Set
Color	Black
Origin	Mainland China

Common Applications

Woodworking jigs and fences
Photography tripods and mounts
Workshop machinery and fixtures
3D printer frames and enclosures
DIY equipment builds and repairs

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Frequently Asked Questions

Q: What thread sizes are available for these star knobs?

A: These black plastic star knobs are available in M4, M5, M6, M8, M10, and M12 female thread sizes, making them compatible with a wide range of equipment and DIY fastening applications.

Q: Are the brass inserts secure enough for repeated tightening?

A: Yes. The brass (copper) female thread insert is precision-fitted into the plastic knob body, providing excellent thread durability and resistance to wear even after repeated hand-tightening cycles.

Q: Can these thumb nuts be used without tools?

A: Absolutely. The cross/star-shaped knob design is specifically engineered for easy finger-tightening and loosening by hand, making tool-free adjustments quick and convenient in workshop or equipment settings.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.

We prioritize quality in selecting the materials for our items, choosing premium fabrics and finishings that ensure durability, comfort, and timeless appeal.

We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.